2 * Pixart PAC7311 library
3 * Copyright (C) 2005 Thomas Kaiser thomas@kaiser-linux.li
5 * V4L2 by Jean-Francois Moine <http://moinejf.free.fr>
7 * This program is free software; you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License as published by
9 * the Free Software Foundation; either version 2 of the License, or
12 * This program is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 * GNU General Public License for more details.
17 * You should have received a copy of the GNU General Public License
18 * along with this program; if not, write to the Free Software
19 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
22 /* Some documentation about various registers as determined by trial and error.
23 When the register addresses differ between the 7202 and the 7311 the 2
24 different addresses are written as 7302addr/7311addr, when one of the 2
25 addresses is a - sign that register description is not valid for the
31 -/0x08 Unknown compressor related, must always be 8 except when not
32 in 640x480 resolution and page 4 reg 2 <= 3 then set it to 9 !
33 -/0x1b Auto white balance related, bit 0 is AWB enable (inverted)
34 bits 345 seem to toggle per color gains on/off (inverted)
35 0x78 Global control, bit 6 controls the LED (inverted)
36 -/0x80 JPEG compression ratio ? Best not touched
41 0x02 Clock divider 2-63, fps =~ 60 / val. Must be a multiple of 3 on
42 the 7302, so one of 3, 6, 9, ...
43 -/0x0f Master gain 1-245, low value = high gain
44 0x10/- Master gain 0-31
45 -/0x10 Another gain 0-15, limited influence (1-2x gain I guess)
46 0x21 Bitfield: 0-1 unused, 2-3 vflip/hflip, 4-5 unknown, 6-7 unused
47 -/0x27 Seems to toggle various gains on / off, Setting bit 7 seems to
48 completely disable the analog amplification block. Set to 0x68
49 for max gain, 0x14 for minimal gain.
52 #define MODULE_NAME "pac7311"
56 MODULE_AUTHOR("Thomas Kaiser thomas@kaiser-linux.li");
57 MODULE_DESCRIPTION("Pixart PAC7311");
58 MODULE_LICENSE("GPL");
60 /* specific webcam descriptor */
62 struct gspca_dev gspca_dev; /* !! must be the first item */
64 unsigned char brightness;
65 unsigned char contrast;
68 unsigned char exposure;
69 unsigned char autogain;
74 #define SENSOR_PAC7302 0
75 #define SENSOR_PAC7311 1
78 u8 autogain_ignore_frames;
83 /* V4L2 controls supported by the driver */
84 static int sd_setbrightness(struct gspca_dev *gspca_dev, __s32 val);
85 static int sd_getbrightness(struct gspca_dev *gspca_dev, __s32 *val);
86 static int sd_setcontrast(struct gspca_dev *gspca_dev, __s32 val);
87 static int sd_getcontrast(struct gspca_dev *gspca_dev, __s32 *val);
88 static int sd_setcolors(struct gspca_dev *gspca_dev, __s32 val);
89 static int sd_getcolors(struct gspca_dev *gspca_dev, __s32 *val);
90 static int sd_setautogain(struct gspca_dev *gspca_dev, __s32 val);
91 static int sd_getautogain(struct gspca_dev *gspca_dev, __s32 *val);
92 static int sd_sethflip(struct gspca_dev *gspca_dev, __s32 val);
93 static int sd_gethflip(struct gspca_dev *gspca_dev, __s32 *val);
94 static int sd_setvflip(struct gspca_dev *gspca_dev, __s32 val);
95 static int sd_getvflip(struct gspca_dev *gspca_dev, __s32 *val);
96 static int sd_setgain(struct gspca_dev *gspca_dev, __s32 val);
97 static int sd_getgain(struct gspca_dev *gspca_dev, __s32 *val);
98 static int sd_setexposure(struct gspca_dev *gspca_dev, __s32 val);
99 static int sd_getexposure(struct gspca_dev *gspca_dev, __s32 *val);
101 static struct ctrl sd_ctrls[] = {
102 /* This control is pac7302 only */
103 #define BRIGHTNESS_IDX 0
106 .id = V4L2_CID_BRIGHTNESS,
107 .type = V4L2_CTRL_TYPE_INTEGER,
108 .name = "Brightness",
110 #define BRIGHTNESS_MAX 0x20
111 .maximum = BRIGHTNESS_MAX,
113 #define BRIGHTNESS_DEF 0x10
114 .default_value = BRIGHTNESS_DEF,
116 .set = sd_setbrightness,
117 .get = sd_getbrightness,
119 /* This control is for both the 7302 and the 7311 */
122 .id = V4L2_CID_CONTRAST,
123 .type = V4L2_CTRL_TYPE_INTEGER,
126 #define CONTRAST_MAX 255
127 .maximum = CONTRAST_MAX,
129 #define CONTRAST_DEF 127
130 .default_value = CONTRAST_DEF,
132 .set = sd_setcontrast,
133 .get = sd_getcontrast,
135 /* This control is pac7302 only */
136 #define SATURATION_IDX 2
139 .id = V4L2_CID_SATURATION,
140 .type = V4L2_CTRL_TYPE_INTEGER,
141 .name = "Saturation",
143 #define COLOR_MAX 255
144 .maximum = COLOR_MAX,
146 #define COLOR_DEF 127
147 .default_value = COLOR_DEF,
152 /* All controls below are for both the 7302 and the 7311 */
156 .type = V4L2_CTRL_TYPE_INTEGER,
163 #define GAIN_KNEE 255 /* Gain seems to cause little noise on the pac73xx */
164 .default_value = GAIN_DEF,
171 .id = V4L2_CID_EXPOSURE,
172 .type = V4L2_CTRL_TYPE_INTEGER,
175 #define EXPOSURE_MAX 255
176 .maximum = EXPOSURE_MAX,
178 #define EXPOSURE_DEF 16 /* 32 ms / 30 fps */
179 #define EXPOSURE_KNEE 50 /* 100 ms / 10 fps */
180 .default_value = EXPOSURE_DEF,
182 .set = sd_setexposure,
183 .get = sd_getexposure,
187 .id = V4L2_CID_AUTOGAIN,
188 .type = V4L2_CTRL_TYPE_BOOLEAN,
193 #define AUTOGAIN_DEF 1
194 .default_value = AUTOGAIN_DEF,
196 .set = sd_setautogain,
197 .get = sd_getautogain,
201 .id = V4L2_CID_HFLIP,
202 .type = V4L2_CTRL_TYPE_BOOLEAN,
208 .default_value = HFLIP_DEF,
215 .id = V4L2_CID_VFLIP,
216 .type = V4L2_CTRL_TYPE_BOOLEAN,
222 .default_value = VFLIP_DEF,
229 static struct v4l2_pix_format vga_mode[] = {
230 {160, 120, V4L2_PIX_FMT_PJPG, V4L2_FIELD_NONE,
232 .sizeimage = 160 * 120 * 3 / 8 + 590,
233 .colorspace = V4L2_COLORSPACE_JPEG,
235 {320, 240, V4L2_PIX_FMT_PJPG, V4L2_FIELD_NONE,
237 .sizeimage = 320 * 240 * 3 / 8 + 590,
238 .colorspace = V4L2_COLORSPACE_JPEG,
240 {640, 480, V4L2_PIX_FMT_PJPG, V4L2_FIELD_NONE,
242 .sizeimage = 640 * 480 * 3 / 8 + 590,
243 .colorspace = V4L2_COLORSPACE_JPEG,
248 static const __u8 probe_7302[] = {
250 0xff, 0x01, /* page 1 */
251 0x78, 0x00, /* deactivate */
253 0x78, 0x40, /* led off */
255 static const __u8 start_7302[] = {
256 /* index, len, [value]* */
257 0xff, 1, 0x00, /* page 0 */
258 0x00, 12, 0x01, 0x40, 0x40, 0x40, 0x01, 0xe0, 0x02, 0x80,
259 0x00, 0x00, 0x00, 0x00,
260 0x0d, 24, 0x03, 0x01, 0x00, 0xb5, 0x07, 0xcb, 0x00, 0x00,
261 0x07, 0xc8, 0x00, 0xea, 0x07, 0xcf, 0x07, 0xf7,
262 0x07, 0x7e, 0x01, 0x0b, 0x00, 0x00, 0x00, 0x11,
266 0x3a, 3, 0x14, 0xff, 0x5a,
267 0x43, 11, 0x00, 0x0a, 0x18, 0x11, 0x01, 0x2c, 0x88, 0x11,
270 0x62, 4, 0x10, 0x1e, 0x1e, 0x18,
272 0x6e, 3, 0x08, 0x06, 0x00,
273 0x72, 3, 0x00, 0xff, 0x00,
274 0x7d, 23, 0x01, 0x01, 0x58, 0x46, 0x50, 0x3c, 0x50, 0x3c,
275 0x54, 0x46, 0x54, 0x56, 0x52, 0x50, 0x52, 0x50,
276 0x56, 0x64, 0xa4, 0x00, 0xda, 0x00, 0x00,
277 0xa2, 10, 0x22, 0x2c, 0x3c, 0x54, 0x69, 0x7c, 0x9c, 0xb9,
282 0xc4, 4, 0xae, 0x01, 0x04, 0x01,
284 0xd1, 11, 0x01, 0x30, 0x49, 0x5e, 0x6f, 0x7f, 0x8e, 0xa9,
287 0xff, 1, 0x01, /* page 1 */
288 0x12, 3, 0x02, 0x00, 0x01,
290 0x76, 5, 0x01, 0x20, 0x40, 0x00, 0xf2,
292 0x7f, 10, 0x4b, 0x0f, 0x01, 0x2c, 0x02, 0x58, 0x03, 0x20,
294 0x96, 5, 0x01, 0x10, 0x04, 0x01, 0x04,
295 0xc8, 14, 0x00, 0x00, 0x00, 0x00, 0x00, 0x07, 0x00, 0x00,
296 0x07, 0x00, 0x01, 0x07, 0x04, 0x01,
299 0xde, 7, 0x00, 0x01, 0x04, 0x04, 0x00, 0x00, 0x00,
300 0xe6, 4, 0x00, 0x00, 0x00, 0x01,
302 0xff, 1, 0x02, /* page 2 */
304 0xff, 1, 0x03, /* page 3 */
305 0x00, 255, /* load the page 3 */
307 0xff, 1, 0x02, /* page 2 */
309 0x22, 4, 0x1f, 0xa4, 0xf0, 0x96,
311 0x2a, 5, 0xc8, 0x00, 0x18, 0x12, 0x22,
312 0x64, 8, 0x00, 0x00, 0xf0, 0x01, 0x14, 0x44, 0x44, 0x44,
314 0xff, 1, 0x01, /* page 1 */
316 0, 0 /* end of sequence */
319 /* page 3 - the value 0xaa says skip the index - see reg_w_page() */
320 static const __u8 page3_7302[] = {
321 0x90, 0x40, 0x03, 0x50, 0xc2, 0x01, 0x14, 0x16,
322 0x14, 0x12, 0x00, 0x00, 0x00, 0x02, 0x33, 0x00,
323 0x0f, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
324 0x00, 0x00, 0x00, 0x47, 0x01, 0xb3, 0x01, 0x00,
325 0x00, 0x08, 0x00, 0x00, 0x0d, 0x00, 0x00, 0x21,
326 0x00, 0x00, 0x00, 0x54, 0xf4, 0x02, 0x52, 0x54,
327 0xa4, 0xb8, 0xe0, 0x2a, 0xf6, 0x00, 0x00, 0x00,
328 0x00, 0x1e, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
329 0x00, 0xfc, 0x00, 0xf2, 0x1f, 0x04, 0x00, 0x00,
330 0x00, 0x00, 0x00, 0xc0, 0xc0, 0x10, 0x00, 0x00,
331 0x00, 0x40, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
332 0x00, 0x40, 0xff, 0x03, 0x19, 0x00, 0x00, 0x00,
333 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
334 0x00, 0x00, 0x00, 0x00, 0x00, 0xc8, 0xc8, 0xc8,
335 0xc8, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x50,
336 0x08, 0x10, 0x24, 0x40, 0x00, 0x00, 0x00, 0x00,
337 0x01, 0x00, 0x02, 0x47, 0x00, 0x00, 0x00, 0x00,
338 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
339 0x00, 0x02, 0xfa, 0x00, 0x64, 0x5a, 0x28, 0x00,
344 static const __u8 probe_7311[] = {
345 0x78, 0x40, /* Bit_0=start stream, Bit_6=LED */
346 0x78, 0x40, /* Bit_0=start stream, Bit_6=LED */
347 0x78, 0x44, /* Bit_0=start stream, Bit_6=LED */
357 static const __u8 start_7311[] = {
358 /* index, len, [value]* */
359 0xff, 1, 0x01, /* page 1 */
360 0x02, 43, 0x48, 0x0a, 0x40, 0x08, 0x00, 0x00, 0x08, 0x00,
361 0x06, 0xff, 0x11, 0xff, 0x5a, 0x30, 0x90, 0x4c,
362 0x00, 0x07, 0x00, 0x0a, 0x10, 0x00, 0xa0, 0x10,
363 0x02, 0x00, 0x00, 0x00, 0x00, 0x0b, 0x01, 0x00,
364 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
366 0x3e, 42, 0x00, 0x00, 0x78, 0x52, 0x4a, 0x52, 0x78, 0x6e,
367 0x48, 0x46, 0x48, 0x6e, 0x5f, 0x49, 0x42, 0x49,
368 0x5f, 0x5f, 0x49, 0x42, 0x49, 0x5f, 0x6e, 0x48,
369 0x46, 0x48, 0x6e, 0x78, 0x52, 0x4a, 0x52, 0x78,
370 0x00, 0x00, 0x09, 0x1b, 0x34, 0x49, 0x5c, 0x9b,
372 0x78, 6, 0x44, 0x00, 0xf2, 0x01, 0x01, 0x80,
373 0x7f, 18, 0x2a, 0x1c, 0x00, 0xc8, 0x02, 0x58, 0x03, 0x84,
374 0x12, 0x00, 0x1a, 0x04, 0x08, 0x0c, 0x10, 0x14,
376 0x96, 3, 0x01, 0x08, 0x04,
377 0xa0, 4, 0x44, 0x44, 0x44, 0x04,
378 0xf0, 13, 0x01, 0x00, 0x00, 0x00, 0x22, 0x00, 0x20, 0x00,
379 0x3f, 0x00, 0x0a, 0x01, 0x00,
380 0xff, 1, 0x04, /* page 4 */
381 0x00, 254, /* load the page 4 */
383 0, 0 /* end of sequence */
386 /* page 4 - the value 0xaa says skip the index - see reg_w_page() */
387 static const __u8 page4_7311[] = {
388 0xaa, 0xaa, 0x04, 0x54, 0x07, 0x2b, 0x09, 0x0f,
389 0x09, 0x00, 0xaa, 0xaa, 0x07, 0x00, 0x00, 0x62,
390 0x08, 0xaa, 0x07, 0x00, 0x00, 0x00, 0x00, 0x00,
391 0x00, 0x00, 0x00, 0x03, 0xa0, 0x01, 0xf4, 0xaa,
392 0xaa, 0x00, 0x08, 0xaa, 0x03, 0xaa, 0x00, 0x68,
393 0xca, 0x10, 0x06, 0x78, 0x00, 0x00, 0x00, 0x00,
394 0x23, 0x28, 0x04, 0x11, 0x00, 0x00
397 static void reg_w_buf(struct gspca_dev *gspca_dev,
399 const char *buffer, int len)
401 memcpy(gspca_dev->usb_buf, buffer, len);
402 usb_control_msg(gspca_dev->dev,
403 usb_sndctrlpipe(gspca_dev->dev, 0),
405 USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
407 index, gspca_dev->usb_buf, len,
412 static void reg_w(struct gspca_dev *gspca_dev,
416 gspca_dev->usb_buf[0] = value;
417 usb_control_msg(gspca_dev->dev,
418 usb_sndctrlpipe(gspca_dev->dev, 0),
420 USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
421 0, index, gspca_dev->usb_buf, 1,
425 static void reg_w_seq(struct gspca_dev *gspca_dev,
426 const __u8 *seq, int len)
429 reg_w(gspca_dev, seq[0], seq[1]);
434 /* load the beginning of a page */
435 static void reg_w_page(struct gspca_dev *gspca_dev,
436 const __u8 *page, int len)
440 for (index = 0; index < len; index++) {
441 if (page[index] == 0xaa) /* skip this index */
443 gspca_dev->usb_buf[0] = page[index];
444 usb_control_msg(gspca_dev->dev,
445 usb_sndctrlpipe(gspca_dev->dev, 0),
447 USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
448 0, index, gspca_dev->usb_buf, 1,
453 /* output a variable sequence */
454 static void reg_w_var(struct gspca_dev *gspca_dev,
466 reg_w_page(gspca_dev, page4_7311, sizeof page4_7311);
469 reg_w_page(gspca_dev, page3_7302, sizeof page3_7302);
473 PDEBUG(D_ERR|D_STREAM,
474 "Incorrect variable sequence");
479 reg_w_buf(gspca_dev, index, seq, len);
483 reg_w_buf(gspca_dev, index, seq, 8);
493 /* this function is called at probe time */
494 static int sd_config(struct gspca_dev *gspca_dev,
495 const struct usb_device_id *id)
497 struct sd *sd = (struct sd *) gspca_dev;
500 cam = &gspca_dev->cam;
503 sd->sensor = id->driver_info;
504 if (sd->sensor == SENSOR_PAC7302) {
505 PDEBUG(D_CONF, "Find Sensor PAC7302");
506 reg_w_seq(gspca_dev, probe_7302, sizeof probe_7302);
508 cam->cam_mode = &vga_mode[2]; /* only 640x480 */
511 PDEBUG(D_CONF, "Find Sensor PAC7311");
512 reg_w_seq(gspca_dev, probe_7311, sizeof probe_7311);
514 cam->cam_mode = vga_mode;
515 cam->nmodes = ARRAY_SIZE(vga_mode);
516 gspca_dev->ctrl_dis = (1 << BRIGHTNESS_IDX)
517 | (1 << SATURATION_IDX);
520 sd->brightness = BRIGHTNESS_DEF;
521 sd->contrast = CONTRAST_DEF;
522 sd->colors = COLOR_DEF;
524 sd->exposure = EXPOSURE_DEF;
525 sd->autogain = AUTOGAIN_DEF;
526 sd->hflip = HFLIP_DEF;
527 sd->vflip = VFLIP_DEF;
531 /* This function is used by pac7302 only */
532 static void setbrightcont(struct gspca_dev *gspca_dev)
534 struct sd *sd = (struct sd *) gspca_dev;
536 static const __u8 max[10] =
537 {0x29, 0x33, 0x42, 0x5a, 0x6e, 0x80, 0x9f, 0xbb,
539 static const __u8 delta[10] =
540 {0x35, 0x33, 0x33, 0x2f, 0x2a, 0x25, 0x1e, 0x17,
543 reg_w(gspca_dev, 0xff, 0x00); /* page 0 */
544 for (i = 0; i < 10; i++) {
546 v += (sd->brightness - BRIGHTNESS_MAX)
547 * 150 / BRIGHTNESS_MAX; /* 200 ? */
548 v -= delta[i] * sd->contrast / CONTRAST_MAX;
553 reg_w(gspca_dev, 0xa2 + i, v);
555 reg_w(gspca_dev, 0xdc, 0x01);
558 /* This function is used by pac7311 only */
559 static void setcontrast(struct gspca_dev *gspca_dev)
561 struct sd *sd = (struct sd *) gspca_dev;
563 reg_w(gspca_dev, 0xff, 0x04);
564 reg_w(gspca_dev, 0x10, sd->contrast >> 4);
565 /* load registers to sensor (Bit 0, auto clear) */
566 reg_w(gspca_dev, 0x11, 0x01);
569 /* This function is used by pac7302 only */
570 static void setcolors(struct gspca_dev *gspca_dev)
572 struct sd *sd = (struct sd *) gspca_dev;
574 static const int a[9] =
575 {217, -212, 0, -101, 170, -67, -38, -315, 355};
576 static const int b[9] =
577 {19, 106, 0, 19, 106, 1, 19, 106, 1};
579 reg_w(gspca_dev, 0xff, 0x03); /* page 3 */
580 reg_w(gspca_dev, 0x11, 0x01);
581 reg_w(gspca_dev, 0xff, 0x00); /* page 0 */
582 reg_w(gspca_dev, 0xff, 0x00); /* page 0 */
583 for (i = 0; i < 9; i++) {
584 v = a[i] * sd->colors / COLOR_MAX + b[i];
585 reg_w(gspca_dev, 0x0f + 2 * i, (v >> 8) & 0x07);
586 reg_w(gspca_dev, 0x0f + 2 * i + 1, v);
588 reg_w(gspca_dev, 0xdc, 0x01);
589 PDEBUG(D_CONF|D_STREAM, "color: %i", sd->colors);
592 static void setgain(struct gspca_dev *gspca_dev)
594 struct sd *sd = (struct sd *) gspca_dev;
596 if (sd->sensor == SENSOR_PAC7302) {
597 reg_w(gspca_dev, 0xff, 0x03); /* page 3 */
598 reg_w(gspca_dev, 0x10, sd->gain >> 3);
600 int gain = GAIN_MAX - sd->gain;
605 reg_w(gspca_dev, 0xff, 0x04); /* page 4 */
606 reg_w(gspca_dev, 0x0e, 0x00);
607 reg_w(gspca_dev, 0x0f, gain);
609 /* load registers to sensor (Bit 0, auto clear) */
610 reg_w(gspca_dev, 0x11, 0x01);
613 static void setexposure(struct gspca_dev *gspca_dev)
615 struct sd *sd = (struct sd *) gspca_dev;
618 /* register 2 of frame 3/4 contains the clock divider configuring the
619 no fps according to the formula: 60 / reg. sd->exposure is the
620 desired exposure time in ms. */
621 reg = 120 * sd->exposure / 1000;
627 if (sd->sensor == SENSOR_PAC7302) {
628 /* On the pac7302 reg2 MUST be a multiple of 3, so round it to
629 the nearest multiple of 3 */
630 reg = ((reg + 1) / 3) * 3;
631 reg_w(gspca_dev, 0xff, 0x03); /* page 3 */
632 reg_w(gspca_dev, 0x02, reg);
634 reg_w(gspca_dev, 0xff, 0x04); /* page 4 */
635 reg_w(gspca_dev, 0x02, reg);
636 /* Page 1 register 8 must always be 0x08 except when not in
637 640x480 mode and Page3/4 reg 2 <= 3 then it must be 9 */
638 reg_w(gspca_dev, 0xff, 0x01);
639 if (gspca_dev->cam.cam_mode[(int)gspca_dev->curr_mode].priv &&
641 reg_w(gspca_dev, 0x08, 0x09);
643 reg_w(gspca_dev, 0x08, 0x08);
645 /* load registers to sensor (Bit 0, auto clear) */
646 reg_w(gspca_dev, 0x11, 0x01);
649 static void sethvflip(struct gspca_dev *gspca_dev)
651 struct sd *sd = (struct sd *) gspca_dev;
654 if (sd->sensor == SENSOR_PAC7302) {
655 reg_w(gspca_dev, 0xff, 0x03); /* page 3 */
656 data = (sd->hflip ? 0x08 : 0x00)
657 | (sd->vflip ? 0x04 : 0x00);
659 reg_w(gspca_dev, 0xff, 0x04); /* page 4 */
660 data = (sd->hflip ? 0x04 : 0x00)
661 | (sd->vflip ? 0x08 : 0x00);
663 reg_w(gspca_dev, 0x21, data);
664 /* load registers to sensor (Bit 0, auto clear) */
665 reg_w(gspca_dev, 0x11, 0x01);
668 /* this function is called at probe and resume time */
669 static int sd_init(struct gspca_dev *gspca_dev)
674 static void sd_start(struct gspca_dev *gspca_dev)
676 struct sd *sd = (struct sd *) gspca_dev;
680 if (sd->sensor == SENSOR_PAC7302) {
681 reg_w_var(gspca_dev, start_7302);
682 setbrightcont(gspca_dev);
683 setcolors(gspca_dev);
685 reg_w_var(gspca_dev, start_7311);
686 setcontrast(gspca_dev);
689 setexposure(gspca_dev);
690 sethvflip(gspca_dev);
692 /* set correct resolution */
693 switch (gspca_dev->cam.cam_mode[(int) gspca_dev->curr_mode].priv) {
694 case 2: /* 160x120 pac7311 */
695 reg_w(gspca_dev, 0xff, 0x01);
696 reg_w(gspca_dev, 0x17, 0x20);
697 reg_w(gspca_dev, 0x87, 0x10);
699 case 1: /* 320x240 pac7311 */
700 reg_w(gspca_dev, 0xff, 0x01);
701 reg_w(gspca_dev, 0x17, 0x30);
702 reg_w(gspca_dev, 0x87, 0x11);
704 case 0: /* 640x480 */
705 if (sd->sensor == SENSOR_PAC7302)
707 reg_w(gspca_dev, 0xff, 0x01);
708 reg_w(gspca_dev, 0x17, 0x00);
709 reg_w(gspca_dev, 0x87, 0x12);
714 sd->autogain_ignore_frames = 0;
715 atomic_set(&sd->avg_lum, -1);
718 reg_w(gspca_dev, 0xff, 0x01);
719 if (sd->sensor == SENSOR_PAC7302)
720 reg_w(gspca_dev, 0x78, 0x01);
722 reg_w(gspca_dev, 0x78, 0x05);
725 static void sd_stopN(struct gspca_dev *gspca_dev)
727 struct sd *sd = (struct sd *) gspca_dev;
729 if (sd->sensor == SENSOR_PAC7302) {
730 reg_w(gspca_dev, 0xff, 0x01);
731 reg_w(gspca_dev, 0x78, 0x00);
732 reg_w(gspca_dev, 0x78, 0x00);
735 reg_w(gspca_dev, 0xff, 0x04);
736 reg_w(gspca_dev, 0x27, 0x80);
737 reg_w(gspca_dev, 0x28, 0xca);
738 reg_w(gspca_dev, 0x29, 0x53);
739 reg_w(gspca_dev, 0x2a, 0x0e);
740 reg_w(gspca_dev, 0xff, 0x01);
741 reg_w(gspca_dev, 0x3e, 0x20);
742 reg_w(gspca_dev, 0x78, 0x44); /* Bit_0=start stream, Bit_6=LED */
743 reg_w(gspca_dev, 0x78, 0x44); /* Bit_0=start stream, Bit_6=LED */
744 reg_w(gspca_dev, 0x78, 0x44); /* Bit_0=start stream, Bit_6=LED */
747 static void sd_stop0(struct gspca_dev *gspca_dev)
749 struct sd *sd = (struct sd *) gspca_dev;
751 if (sd->sensor == SENSOR_PAC7302) {
752 reg_w(gspca_dev, 0xff, 0x01);
753 reg_w(gspca_dev, 0x78, 0x40);
757 /* Include pac common sof detection functions */
758 #include "pac_common.h"
760 static void do_autogain(struct gspca_dev *gspca_dev)
762 struct sd *sd = (struct sd *) gspca_dev;
763 int avg_lum = atomic_read(&sd->avg_lum);
769 if (sd->sensor == SENSOR_PAC7302)
770 desired_lum = 70 + sd->brightness * 2;
774 if (sd->autogain_ignore_frames > 0)
775 sd->autogain_ignore_frames--;
776 else if (gspca_auto_gain_n_exposure(gspca_dev, avg_lum, desired_lum,
777 10, GAIN_KNEE, EXPOSURE_KNEE))
778 sd->autogain_ignore_frames = PAC_AUTOGAIN_IGNORE_FRAMES;
781 static const unsigned char pac7311_jpeg_header1[] = {
782 0xff, 0xd8, 0xff, 0xc0, 0x00, 0x11, 0x08
785 static const unsigned char pac7311_jpeg_header2[] = {
786 0x03, 0x01, 0x21, 0x00, 0x02, 0x11, 0x01, 0x03, 0x11, 0x01, 0xff, 0xda,
787 0x00, 0x0c, 0x03, 0x01, 0x00, 0x02, 0x11, 0x03, 0x11, 0x00, 0x3f, 0x00
790 /* this function is run at interrupt level */
791 static void sd_pkt_scan(struct gspca_dev *gspca_dev,
792 struct gspca_frame *frame, /* target */
793 __u8 *data, /* isoc packet */
794 int len) /* iso packet length */
796 struct sd *sd = (struct sd *) gspca_dev;
799 sof = pac_find_sof(gspca_dev, data, len);
801 unsigned char tmpbuf[4];
802 int n, lum_offset, footer_length;
804 if (sd->sensor == SENSOR_PAC7302) {
805 lum_offset = 34 + sizeof pac_sof_marker;
808 lum_offset = 24 + sizeof pac_sof_marker;
812 /* Finish decoding current frame */
813 n = (sof - data) - (footer_length + sizeof pac_sof_marker);
815 frame->data_end += n;
818 frame = gspca_frame_add(gspca_dev, INTER_PACKET, frame,
820 if (gspca_dev->last_packet_type != DISCARD_PACKET &&
821 frame->data_end[-2] == 0xff &&
822 frame->data_end[-1] == 0xd9)
823 frame = gspca_frame_add(gspca_dev, LAST_PACKET, frame,
830 /* Get average lumination */
831 if (gspca_dev->last_packet_type == LAST_PACKET &&
833 if (sd->sensor == SENSOR_PAC7302)
834 atomic_set(&sd->avg_lum,
835 (data[-lum_offset] << 8) |
836 data[-lum_offset + 1]);
838 atomic_set(&sd->avg_lum,
840 data[-lum_offset + 1]);
842 atomic_set(&sd->avg_lum, -1);
845 /* Start the new frame with the jpeg header */
846 gspca_frame_add(gspca_dev, FIRST_PACKET, frame,
847 pac7311_jpeg_header1, sizeof(pac7311_jpeg_header1));
848 if (sd->sensor == SENSOR_PAC7302) {
849 /* The PAC7302 has the image rotated 90 degrees */
850 tmpbuf[0] = gspca_dev->width >> 8;
851 tmpbuf[1] = gspca_dev->width & 0xff;
852 tmpbuf[2] = gspca_dev->height >> 8;
853 tmpbuf[3] = gspca_dev->height & 0xff;
855 tmpbuf[0] = gspca_dev->height >> 8;
856 tmpbuf[1] = gspca_dev->height & 0xff;
857 tmpbuf[2] = gspca_dev->width >> 8;
858 tmpbuf[3] = gspca_dev->width & 0xff;
860 gspca_frame_add(gspca_dev, INTER_PACKET, frame, tmpbuf, 4);
861 gspca_frame_add(gspca_dev, INTER_PACKET, frame,
862 pac7311_jpeg_header2, sizeof(pac7311_jpeg_header2));
864 gspca_frame_add(gspca_dev, INTER_PACKET, frame, data, len);
867 static int sd_setbrightness(struct gspca_dev *gspca_dev, __s32 val)
869 struct sd *sd = (struct sd *) gspca_dev;
871 sd->brightness = val;
872 if (gspca_dev->streaming)
873 setbrightcont(gspca_dev);
877 static int sd_getbrightness(struct gspca_dev *gspca_dev, __s32 *val)
879 struct sd *sd = (struct sd *) gspca_dev;
881 *val = sd->brightness;
885 static int sd_setcontrast(struct gspca_dev *gspca_dev, __s32 val)
887 struct sd *sd = (struct sd *) gspca_dev;
890 if (gspca_dev->streaming) {
891 if (sd->sensor == SENSOR_PAC7302)
892 setbrightcont(gspca_dev);
894 setcontrast(gspca_dev);
899 static int sd_getcontrast(struct gspca_dev *gspca_dev, __s32 *val)
901 struct sd *sd = (struct sd *) gspca_dev;
907 static int sd_setcolors(struct gspca_dev *gspca_dev, __s32 val)
909 struct sd *sd = (struct sd *) gspca_dev;
912 if (gspca_dev->streaming)
913 setcolors(gspca_dev);
917 static int sd_getcolors(struct gspca_dev *gspca_dev, __s32 *val)
919 struct sd *sd = (struct sd *) gspca_dev;
925 static int sd_setgain(struct gspca_dev *gspca_dev, __s32 val)
927 struct sd *sd = (struct sd *) gspca_dev;
930 if (gspca_dev->streaming)
935 static int sd_getgain(struct gspca_dev *gspca_dev, __s32 *val)
937 struct sd *sd = (struct sd *) gspca_dev;
943 static int sd_setexposure(struct gspca_dev *gspca_dev, __s32 val)
945 struct sd *sd = (struct sd *) gspca_dev;
948 if (gspca_dev->streaming)
949 setexposure(gspca_dev);
953 static int sd_getexposure(struct gspca_dev *gspca_dev, __s32 *val)
955 struct sd *sd = (struct sd *) gspca_dev;
961 static int sd_setautogain(struct gspca_dev *gspca_dev, __s32 val)
963 struct sd *sd = (struct sd *) gspca_dev;
966 /* when switching to autogain set defaults to make sure
967 we are on a valid point of the autogain gain /
968 exposure knee graph, and give this change time to
969 take effect before doing autogain. */
971 sd->exposure = EXPOSURE_DEF;
973 if (gspca_dev->streaming) {
974 sd->autogain_ignore_frames =
975 PAC_AUTOGAIN_IGNORE_FRAMES;
976 setexposure(gspca_dev);
984 static int sd_getautogain(struct gspca_dev *gspca_dev, __s32 *val)
986 struct sd *sd = (struct sd *) gspca_dev;
992 static int sd_sethflip(struct gspca_dev *gspca_dev, __s32 val)
994 struct sd *sd = (struct sd *) gspca_dev;
997 if (gspca_dev->streaming)
998 sethvflip(gspca_dev);
1002 static int sd_gethflip(struct gspca_dev *gspca_dev, __s32 *val)
1004 struct sd *sd = (struct sd *) gspca_dev;
1010 static int sd_setvflip(struct gspca_dev *gspca_dev, __s32 val)
1012 struct sd *sd = (struct sd *) gspca_dev;
1015 if (gspca_dev->streaming)
1016 sethvflip(gspca_dev);
1020 static int sd_getvflip(struct gspca_dev *gspca_dev, __s32 *val)
1022 struct sd *sd = (struct sd *) gspca_dev;
1028 /* sub-driver description */
1029 static struct sd_desc sd_desc = {
1030 .name = MODULE_NAME,
1032 .nctrls = ARRAY_SIZE(sd_ctrls),
1033 .config = sd_config,
1038 .pkt_scan = sd_pkt_scan,
1039 .dq_callback = do_autogain,
1042 /* -- module initialisation -- */
1043 static __devinitdata struct usb_device_id device_table[] = {
1044 {USB_DEVICE(0x093a, 0x2600), .driver_info = SENSOR_PAC7311},
1045 {USB_DEVICE(0x093a, 0x2601), .driver_info = SENSOR_PAC7311},
1046 {USB_DEVICE(0x093a, 0x2603), .driver_info = SENSOR_PAC7311},
1047 {USB_DEVICE(0x093a, 0x2608), .driver_info = SENSOR_PAC7311},
1048 {USB_DEVICE(0x093a, 0x260e), .driver_info = SENSOR_PAC7311},
1049 {USB_DEVICE(0x093a, 0x260f), .driver_info = SENSOR_PAC7311},
1050 {USB_DEVICE(0x093a, 0x2621), .driver_info = SENSOR_PAC7302},
1051 {USB_DEVICE(0x093a, 0x2624), .driver_info = SENSOR_PAC7302},
1054 MODULE_DEVICE_TABLE(usb, device_table);
1056 /* -- device connect -- */
1057 static int sd_probe(struct usb_interface *intf,
1058 const struct usb_device_id *id)
1060 return gspca_dev_probe(intf, id, &sd_desc, sizeof(struct sd),
1064 static struct usb_driver sd_driver = {
1065 .name = MODULE_NAME,
1066 .id_table = device_table,
1068 .disconnect = gspca_disconnect,
1070 .suspend = gspca_suspend,
1071 .resume = gspca_resume,
1075 /* -- module insert / remove -- */
1076 static int __init sd_mod_init(void)
1078 if (usb_register(&sd_driver) < 0)
1080 PDEBUG(D_PROBE, "registered");
1083 static void __exit sd_mod_exit(void)
1085 usb_deregister(&sd_driver);
1086 PDEBUG(D_PROBE, "deregistered");
1089 module_init(sd_mod_init);
1090 module_exit(sd_mod_exit);